sources for preforated sheet

grumpyvette

Administrator
Staff member
if you want to build custom windage screens, oil cooler mount plates,grills, exhaust baffles ,LIFTER VALLEY SHRAPNEL SCREENS etc
perforated steel or aluminum sheet comes in really handy, THE SIZE AND MATERIAL USED WILL NATURALLY VARY WITH THE APPLICATION


theres dozens of sizes of perforated sheet can be used for shrapnel screens or fabricating a windage screen,most sizes, with at least 40% open area should work ok,Ive used very similar looking perforated metal sheet in the past with good results,
515nbheAPBL.jpg

it would be rather useful to find a cost effective high volume oil pan and matching oil pump pick-up matching your particular application before jumping into the purchase of related parts,
don,t blindly grab your credit card and start purchasing parts think things through, measure accurately and you'll find you save yourself a great deal of wasted time and effort
fabricating a custom built windage tray like this if properly done will more than likely be cheaper AND more effective than many you could purchase
I generally use perforated steel, stainless or mild steel, galvanized or aluminum can,t be safely or easily welded into a steel oil pan, with the common mig welder, galvanized won,t weld easily and gives off toxic fumes, you can,t weld aluminum to steel
I generally buy a 12" x 24" sheet like this and make a poster card board , pattern and tape it with duct tape in the oil pan to test fit before I cut the metal ,that way I don,t screw it up before I start to cut and fit and weld it into the oil pan, the cost will generally be under $20 an oil pan
one more in an endless list of reasons to buy a decent welder in their garage shop


windage%20screen%20005.JPG

windage%20screen%20006.JPG

windage%20screen%20009.JPG

yes one more in an ENDLESS LIST OF REASONS TO OWN A MIG OR TIG WELDER
http://garage.grumpysperformance.com/index.php?threads/most-versital-shop-welder.1594/
Image11a.jpg

but look at this chart, I circled the type I used in green notice the percentage of open area vs closed sheet changes a great deal with the pattern and hole sizes selected , for a windage screen or a shrapnel , or windage screen I generally want holes covering at least 45%-50% coverage and at least 1/4"-3/16" in diam. in a windage screen perforated sheet
perf.png

008X008S0280W36T.jpg

while I generally use stainless 6 or 8 mesh for shrapnel screens theres lots of options that will work just fine, just remember to keep the oil changed regularly or theres some potential for sludge to clog ANY size shrapnel screens
http://www.twpinc.com/twpinc/products/T ... 6T0350W36T
http://www.twpinc.com/twpinc/products/T ... 8S0280W36T
home depot and lowes carry some types
heres more sources

http://www.onlinemetals.com/merchant.cfm?id=1004&step=2

http://www.millerwireworks.com/perforatedplate.php

http://www.accurateperforating.com/patterns.php

http://www.mcnichols.com/perforated-steel.htm

http://www.mechanicalmetals.com/perforatedmetals.html

http://www.pwsteel.com/petro_perforated_metal.html

http://www.perforatedmetal.cn/

http://www.mcmaster.com/#perforated-sta ... ts/=1cchv0

http://www.perforatedsheet.net/

http://www.mechanicalmetals.ca/wiremesh.html

http://www.perforated-metal.biz/Plain_S ... _Metal.htm

http://perforatedmetalscreen.com/perfor ... heets.html

http://www.onlinemetals.com/merchant.cf ... op_cat=849

use a good 7-8 quart baffled oil pan
canton2.jpg

projects
viewtopic.php?f=51&t=1458&p=3265&hilit=screen#p3265

http://victorylibrary.com/mopar/baffle.htm

viewtopic.php?f=54&t=65

viewtopic.php?f=54&t=64

viewtopic.php?f=62&t=1519&p=3474#p3474

viewtopic.php?f=80&t=793&p=1150&hilit=baffle+exhaust#p1150

lowes, home depot and most large hardware stores either carry it or can easily order it, the guys that build custom stereo systems use alot of it and I used to buy it from those guys untill I found it was far cheaper from other sources, btw you can POWDER COAT most steel or aluminum prefforated sheet any collor you choose and its usually not that expensive to do, if you either do it yourself or have a local shop do it for you in a collor they are currently using for a production run
 
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If youve got an excessively loud exhaust theres several ways that you can reduce the sound volume, Ive suggested an (X) pipe mounted as close to the header collectors as clearances allow, as it tends to both reduce restriction and mellow the tone

viewtopic.php?f=56&t=1503
xss.JPG

and you can also mount an (H) cross over pipe
100_0111.jpg

http://www.onlinemetals.com/act_productsearch.cfm
(H) PIPE[/color

just in front of the muffler entrances as that's also been shown to break up sound flow in an exhaust and thats usually a good addition, as it tends to blend and mellow the tone and reduce back pressure further .

http://www.jegs.com/c/Crossover-X-and-H ... 5QodFhlIbw

NOISE is basically VIBRATION, and in this case the VIBRATION is in the form of rhythmic exhaust pulses, that change frequency with the engines rpm changes
you can either blend and smooth the exhaust flow to eliminate the individual pulses or break up the pulses, or do both, but one trick seldom mentioned thats both fairly cheap and reasonably easy to do is to install a perforated metal baffle in the exhaust ,
515nbheAPBL.jpg


lets say youve got dual 2.5" exhaust pipes about 30" long on both side of the car between the rear of the (X) pipe and the first curve, if you were to cut two sections of perforated steel just a bit smaller in width than the inside dimensions of the two pipe,and about 30" long, put one end in a vise and spin the other end of the strip 360-720 degrees so you have a spiral looking a bit like a drill bit
qwe.JPG

and insert each inside the strait section of pipe it tends to break up sound waves some what

theres also exhaust inserts but I think the smallest is 3" diam.

dtc-72-32520_w.jpg


RELATED INFO

viewtopic.php?f=56&t=2916

viewtopic.php?f=56&t=1166

http://www.onlinemetals.com/index.cfm

viewtopic.php?f=44&t=1518&p=3473&hilit=preforated#p3473

viewtopic.php?f=56&t=1503

viewtopic.php?f=80&t=793&p=1150&hilit=baffle+exhaust#p1150
 
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